For sales teams
Outbound that
closes deals.
MailerSpark is the outbound layer your CRM doesn't have. Sequences that stop on reply, inboxes that auto-rotate, AI that sorts your Interested pile from the noise.
Gmail + 365 + SMTP/IMAP · Stop on reply · Unibox with AI
The outbound stack
One tool. Six jobs.
Sequences
Multi-step with wait days, A/B subjects, conditional branches, and stop-on-reply.
Learn moreConnected inboxes
Gmail OAuth, Microsoft 365 OAuth, or any SMTP/IMAP mailbox. Credentials encrypted at rest.
Learn moreUnibox
Every reply in one inbox. Per-thread context. No inbox switching.
Learn moreAI classification
Replies sorted as Interested, OOO, Wrong Person, or Auto-Reply. Your team works the Interested pile.
Learn moreProxy rotation
SOCKS4/5, HTTP, HTTPS residential proxies. Rotate SMTP egress IP per send.
Learn moreReply analytics
Reply rate, positive reply rate, time-to-reply, per-inbox health.
Learn moreGrowth plan and above
Outbound on Growth and above.
Plus the API and webhooks to wire MailerSpark straight into your CRM and lead routing.